Respuesta :
The motion of the ball on the frictionless ramp is defined by increasing translational speed with non zero angular speed. The correct option is C.
What is angular speed?
When a body is moving on a circular track, the speed of the particle is called as the angular speed.
When a ball is rolling without slipping, the motion is both translational and rotational. At point of contact at rest, the velocity is zero. The ball rolls without slipping only if the ball moves with zero speed at point of contact.
On the inclined part, the gravity acts straight downward. Velocity remains constant, ramp pushes back the ball and so the ball pushes ramp. There will be no acceleration and velocity remains constant. The angular speed is directly proportional to the linear velocity.
Thus, the correct option is C.
Learn more about angular speed.
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